Pre-signed URL Issues
Last updated: 2025-12-17 16:12:52
After successfully generating a presigned URL, how do you obtain the URL?
Print the URL in the language of the corresponding SDK to obtain it.
Does It Support Generating Presigned URLs For Folders?
COS does not support generating presigned URLs for folders; signatures can only be generated for specified objects and concatenated for access. This is because COS operates solely on objects and does not have the concept of folders.
How Do I Generate a Presigned URL When Using a Custom Domain Name?
By specifying the corresponding custom domain name for the origin during SDK initialization, you can implement the feature of specifying a custom domain when generating a presigned URL, for example JavaSDK.
After initialization is completed, then implement generating a presigned URL.
Click to obtain the presigned URL link for download, but the download feature is not working. How to resolve this?
See How to force files to download directly in the browser instead of being previewed? in the Upload and Download section.
Is It Necessary to Set the Corresponding content type When a Presigned Download URL That Overrides the Response Headers Is Generated?
Configuration is required.
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